Material-handling apparatus



Jan. 4, 1927. E. L. BRADT MATERIAL HANDLI NG APPARATUS Filed March 10, 1926 4 sheets-sheet 2 Jji g. Z.

WITNESSES E L B gVi-ENTOR amfiawzw 7; 7

ATTORNEYS .Jan. E. L. BRADT MATERIAL HANDLING APPARATUS Fil'ed March 10 1925 4 Sheets-Sheet 3 INVENTOR E.'L. Brad?! oy/4414A )6 ATTORNEYS WITNESSES 1,613,308 E. L. BRADT MATERIAL HANDLING APPARATUS Jan. 4,

Filed March 10. 1926 4 Sheets-Sheet 4 0 m *3 r a; g m M WITNESSES XNVENTOR E. L.Bra.dfi

ATTORNEYS Patented Jan. 4, 192 7.

UNITED STATES V I l v EDWARD L. BRADT, 0F SHREVEIPORT, LOUISIANA, ASSIGNQR EEO-FRED C. ARMB 1,613,308 PATENT 1 OFFICE,

OF SHREVEPORT, LOUISIANA.

MATERIAL-HANDLING APPARATU'Sl v I This inventionrelates in general to a ma-i terial-handling apparatus especially adapted forloading or unloading material such as crushed stone, gravel, sand, clay, chert, coal, or the like into or from open top railroad cars, wagons, trucks, or the like, as well as onto or from storage piles or the like.

The object of the invention is to provide a labor saving mechanical device by'which materials of the character mentioned may be quickly and easily loaded and unloaded into cars or other vehicles or onto storage piles and one of the important features of the invention resides in the fact that the material handling apparatus embodying the present invention is adapted to be adjusted to carry out the loading throughout the entire extent of the car or vehicle in which the material is to be placed or from which the material is to be taken.

Other'objects and advantages reside in certain novel features of the construction,

I arrangement and combination of parts which tion,

will be hereinafter more fully described and particularly pointed out in the appended claims, reference being had to the accoInpanying drawings formi'n'ga part of th s specification, and in which Figure 1 is a fragmentary plan view .ance with the present invention, Figure 2 is a View thereofun side eleva- Figure 3'isa fragmentary view showing the extensible mast and associated-parts in transverse vertical section.

Figure 4 is a sectional view taken on'the Figures 5, 6 and 7 are diagrammatic views in elevation illustrating different positions of the parts of the apparatus embodying the inpper endo'f the section 7, the cables being present invention. v i v Referring to the drawingsit will be seen that the apparatus embodying the present invention includes a support which in the present instance is constituted by a wheeled platform which may be propelled or pulled in any suitable manner. 'A mainshaft 2 is rotatably mounted in bearings 3 provided therefor on the support 1 and this shaft 3 is driven by any suitable gearing illustrated for the sake of illustration as chain and sprocket gearing 4 from a power plant 5 which may be an internal combustion en-' showing a loading device constructed in accordsection and'whenthe mast is extended the gine, an electric motor, a steam engine or any othertype of prime mover. 1

An extensible mast, designated generally at 6, is provided and -c'onsistsof telescoping sections 7 and 8, the section 7 being the inner section which is fixed in respect of axial f movement and thefsection 8 being the outer section which is movable axially with and longitudinally on the inner section 7. The inner section 7' is provided with'trunnions 9 through which the'main'shaft 2 loosely extends. By virtue of this mounting-on the main shaft the extensible mast is tiltable or adjustable angularly about the main shaft. Means is provided for controlling the tilting movement of the extensible mast 6 and consists of a pair of segmental gears 10 formed on the lower endsof opposite sides of the inner sections 7 of the mast and meshing with pinions 11 fixed on an-operating sh'a'ft 12 driven by chain and sprocket gearing 13 from themain'shaft 2, the drive being controllable at .will by means'of a clutch 14: which may be of any suitable type. The shaft 12 is held many adjustment by any suitable holding means which-may consist of a brake 15'as illustrated in Fi ure 4.

The mast 6 consists, as indicated, ofinterfittingor telescoping tubular sections which are preferably of rectangular form in'cross section 8 slides upwardly'on the section 7.

. Means is provided for controlling the sliding movement of the sections 8 and preferably consists of a winch l6 driven from the main around guide pulleys 22 at the lower end of the section 7 and guide pulleys 23'at the attached at. their lower ends ,to' the sliding section 8, as indicated at 23. Thus when the cables are wound on the. winch 16 then the section 8 is elevated. -The drum of the winch .16 hasfa suitable brake attached thereto and holding the section 8'elevated. The gearing 17 may'embody a: suitable reversing means for driving the drum of the winch" 16 in either direction,

' A'boom, designated at 25, is .rovided and consis'tsof. two laterallyexten ing arms 26 fastened to the opposite sides-of the upper RUSTER,

may

end of the sliding section 8 of the mast. To

the outer ends of the arms 26 which constitute the boom the upper end of the frame 27 of a bucket elevator, designated generally at are fixed and serve to provide a base or sup-- port for the lower end of the bucket elevator t 28-in certain phases of the. operation.

\ 7 1,541; Means is provided for swinging the bucket elevator about its pivotal mounting and for holding it in any desired adjustment and this means consists of a pair of push bars 32 pivotally connected, as at 33, to the frame 27 of the bucket elevator and having ranks34 meshing with pinions 35 fixed on a pinion shaft 36 'rotatably mounted in suit; able bearings provided therefor on the secg tion 8 of the mast. Rollers 37 are rotatahly mounted on the section 8 of the mast and engage the smooth backs of the push bars to maintain the racks 34 engaged with the pinions 35.

The shaft 36 is held any adjustment by means of suitable braking mechanism 38 (see Fig. 1) and this shaft is driven from the main shaft 3 at thewill of the operator. For the purpose of driving. the shaft 36 and also for driving the bucket elevator, in all adjustments of the extensible mast and in all adjustments of'the elevator, the shaft 3 has fixed thereto oppositely disposed beveled gears 39 whichmesh with a driven beveled gear 40 fixed to the lower end of .vertical shaft 41 rotatably mounted in bearings provided therefor on the fixed section 7 of the mast. The shaft 41- is provided with a longitudinal key-way 42 with which the key of a sliding gear 43 co-acts whereby to constraint-he gear 43 to rotate with the shaft 41 while permitting the gear 43 to freely slide along this shaft. In order to cause the gear 43 to slide along the shaft 41 in accordance with the movement of the outer movable section 8 of the mast, the sec tion 8 has a transversely extending cross "bar 44, the central portion -of which is apertured to receive the shaft 41 and is suitablyengaged with the hub of ,the gear 43.. -This cross bar 44 operates in lengthwise slots 45 provided in the inner section 7 of the mast. The gear 43 meshes with oppositely disposedbeveled gears 46 fixed to the inner ends of stub shafts 47 rotatably mounted in bearings provided therefor in the movable section -8 and accommodated in slots 45 in section 7. The portions of the stub shaft 47 "which project beyond the mast have sprocket wheels 48 and 49 fixedthereto, asprocket chain .50- being trained over the sprocket wheel 48 and over a sprocket wheel 51 fixed on the shaft 36. A clutch 52 and the shaft 47 on which it is mounted so that the rotation'of the shaft 36 may be controlled at will. A sprocket chain 53 is trained over the sprocketwheel 49 and over a sprocket wheel 54 fixed to the shaft on which the bucket elevator 28 is pivoted and on which the upper sprockets 5 4 are secured. A clutch 55 is provided between the sprocket wheel 49 and the shaft 47 so that provided between the sprocket wheel 48 the actuation of the bucket elevator may be controlled at will. u

A chute, designated generally'at 60,-is, provided and includes an uppersection '61 fixed to the movable section and'movable therewith and a lower section 62 fixed to the stationary section 7 of th mast, the upper section 61 telescoping into the lower section 62. The upper section 61' isprovided with a flaring inlet or receiving mouth 63 positioned to receive the material from the buckets of the elevator 28. The lower end' of the section 62 drops the material from the chute" into a hopper 64. which drops the material onto a laterally extending conveyor 65 which carries the material to the point of discharge, The conveyor 65 includes an endless conveyor element 67 actuated-by sprocket wheels 68 mounted on shafts 69, one of the shafts 69 being driven fromthe main shaft 3 by means of gearing 7 0 controlled. by a clutch 7 Figure 5 illustrates, how the mast '6 may be tilted and2 the bucket elevator 28 swung inward to lift the bucket elevator'up over the sides: of cars where the sides are relatively high. Figure. 6 illustrates how the bucket elevator may be swung inwardly to make the mastmore compact for transportation and Figure 7 illustrates how the bucket elevator 28 and the mast 6 may be swung and tilted respectively in order to move the material from the car for its entire transverse extent. The machine may be moved along the car to remove the material from the car for its entire longitudinal ex-- tent; i

-1. A material handling apparatus of the character described comprising a support, a vertically extensible mast, means for controlling the extension of the mast, means for mounting the mast for tilting movement on the support, means for controlling the tilting of the mast, a boom fixed to the mast and extending laterally therefrom, an eleva-, tor pivot-ally mounted on the boom, means for controlling the position of the elevator, an extensible chute mounted on the mast and extensible therewith, said chute having its upper portion disposed to receive the material from the elevator,v and a laterally extending conveyor receiving the material 8 of the mast vertically extensible mast, means for con-' trolling the extension of the mast, means for mounting the mast for tilting movement on the support, means for controlling the tilt ing of the mast, a boom fixed vto the mast and extending laterally therefrom, an. elevator pivotally mounted .onthe boom, means for controlling the position of theelevator,

- and an extensible chute mounted on the mast and extensibletherewi-th, said chute having its upper portion disposed toreceive'the ma terial from the elevator.

3. A material handling apparatusiofthe, character described comprising-a support, a vertically extensible mast mounted on the support, means for controlling the extension or the mast, a boom carried by the mast, an elevator pivoted to the boom; means for conftrollin the position of the elevator, and-an extensi le chute mounted on the mast ex-' tensible therewith and receiving the material. from the elevator, 1

character described comprising a support, a

verticallylextensible mast, means for control- V ing of the mast, a boom fixed tothe mast and extending laterally therefrom, an elevam'ounted on the boom, means ling the extension of the mast,-fmeans for mounting the mast for tilting movement on,

the support, means-for controlling the tilttor pivotally for co'ntrollin the posit-ioniof the elevator including push bars pivotally connected to the elevator and having'racks, pinions meshed with the racks, a pinion shaft on which the pinions are fixed, controllable means for driving said shaft jan extensible, chute mounted on the mast and extensible there'- with, said chute having its upper portion receive the material from the eleceiving the material from the chute andv conducting it to the point of discharge.

5. A material'handling apparatus of the character described-comprising a support, a

vertically extensible mast, means for control-L point of discharge.

- shafts',

mounting the mast for tilting movement on the support, means for controlling the tilting of the mast, including segmental gears carried on the lower end of the'mast, pinions ling the. extension of the mast, means for I,

meshed with the segmental gears; a shaft on which the pinions are fixed, controllable means for rotating the shaft, aboom fixed laterally therethe mast-and extensibletherewith, said chute.

having its upper portion disposed to receive I the material from the elevator,- and a laterally extending conveyor receiving the mateconducting it to the rial from the chute and 6. A material handling character described comprisinga support, a vertically extensible mast and a relatively movable section slidable on the fixed section, means for controlling the sliding movement-of the movable section, a i i boom fixed to thema st and extending-later- 4. A materialhandling apparatus'ofthe.

ally therefrom, an elevator pivotally mounted. on the boom, means fdr controlling the pivotal movement of the elevator on the boom including push bars pivotally connected to the boom and having racks, pinions meshed with the racks and mounted on the movable section of the mast, means for driving-the buclaet elevator including a gear, a gear shaft mounted on the movable'isection apparatus of the. 70 including a rela tively fixed section mounted on the support of the mast, 'a'second gear shaft also mdunted on the movable section of the'inast and connected withtthe pinion shaft, means for' driving said gear shaft in all adjustments of. section and including a vertical the movable shaft extending up through the mast, a gear splined on said vertical shaft, means for movingthe gear splined on-the vertical shaft in accordance with the movements of the vertical sectiommeans for transmitting the motion of said splined gear to the gear and means for'driv'ing' the vertical shaft;

1 j nnvvasn ii. Bnanr. 

